#
# Copyright (C) 2019 Canonical Ltd
#
# This program is free software: you can redistribute it and/or modify
# it under the terms of the GNU General Public License version 3 as
# published by the Free Software Foundation.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program.  If not, see <http://www.gnu.org/licenses/>.

SNAPD_ENVIRONMENT_FILE := /etc/environment
BINDIR := /usr/bin
SYSTEMDUSERUNITDIR := /usr/lib/systemd/user

SYSTEMD_UNITS_GENERATED := $(wildcard *.in)
# NOTE: sort removes duplicates so this gives us all the units, generated or otherwise
SYSTEMD_UNITS = $(sort $(SYSTEMD_UNITS_GENERATED:.in=) $(wildcard *.service) $(wildcard *.timer) $(wildcard *.socket))

.PHONY: all
all: $(SYSTEMD_UNITS)

.PHONY: install
install:: $(SYSTEMD_UNITS)
	# NOTE: old (e.g. 14.04) GNU coreutils doesn't -D with -t
	install -d -m 0755 $(DESTDIR)/$(SYSTEMDUSERUNITDIR)
	install -m 0644 -t $(DESTDIR)/$(SYSTEMDUSERUNITDIR) $^

.PHONY: clean
clean:
	rm -f $(SYSTEMD_UNITS_GENERATED:.in=)

%: %.in
	cat $< | \
		sed s:@bindir@:$(BINDIR):g | \
		cat > $@
